What Is Domain Authority and Why Does It Matter for Your Business?

If you have spent any time talking to an SEO agency, you have probably heard the term domain authority thrown around like it is the secret scoreboard of the internet. Business owners are often told their score is too low, their competitors are pulling ahead, and they need to fix it immediately. So what is domain authority actually, and should you care about it?

Here is the short answer. Domain authority is a helpful comparison tool, not a Google ranking factor, and not a guarantee of anything on its own. Understanding what it really measures will help you make smarter decisions about where your marketing dollars go.

What Is Domain Authority?

Domain Authority, often abbreviated as DA, is a metric created by the SEO software company Moz. It scores websites on a scale from 1 to 100 and predicts how likely a site is to rank in search engine results compared to other sites competing for the same keywords. A higher score generally suggests a stronger backlink profile and more overall trust in the eyes of search engines.

It is important to understand one thing right away. Google does not use Domain Authority in its algorithm. Google has said publicly for years that it does not track or use a metric called domain authority when ranking pages, as reported in coverage on Ahrefs’ website authority checker (ahrefs.com/website-authority-checker). DA is a third party estimate, not an official Google score.

That said, a 2024 leak of internal Google documents revealed the existence of an internal attribute called siteAuthority, which suggests Google does measure some form of sitewide trust internally, even if it does not match Moz’s public metric, according to reporting summarized by ClickRank (clickrank.ai/is-domain-authority). So while DA itself is not the mechanism, the underlying idea, that some sites are more trustworthy than others, is very real to Google.

Why Domain Authority Correlates With Rankings

Even though Google does not read your DA score, sites with strong DA scores still tend to rank better. That is because DA and Google rankings are both largely driven by the same underlying signal, the quality and quantity of backlinks pointing to a website.

Research compiled by Ritner Digital (ritnerdigital.com) found that 63 percent of SEO professionals use DA as their primary metric for evaluating link opportunity quality, making it the most referenced third party SEO metric in the industry. The same research points out that DA operates on a logarithmic scale, so moving from a score of 20 to 30 is much easier than moving from 70 to 80. Each additional point becomes harder to earn as your score climbs.

Separate data reported by Wellows (wellows.com/blog/domain-authority-tips) found that sites with a DA of 50 or higher were about 3.7 times more likely to rank in the top 10 for competitive keywords compared to sites scoring between 20 and 30. That is a meaningful gap, and it is one reason agencies talk about DA so often.

What a Good Domain Authority Score Looks Like

There is no single good score, because DA is relative to your competition and your industry. However, general benchmarks can help you understand where you stand.

According to industry data gathered by Ritner Digital, the median website has a Domain Authority between 30 and 35, and the majority of all websites fall somewhere between 20 and 50. A brand new domain always starts at a score of 1 and climbs from there as it earns links and traffic.

Industry also matters a great deal. Research from Launchcodex (launchcodex.com) shows that local service businesses, like HVAC companies or law firms, typically compete in the DA 25 to 35 range, while SaaS and B2B technology brands often need a DA of 52 or higher to rank nationally. A separate 2026 benchmarking report from Linkscope (linkscope.io) found that the number one organic ranking position on Google averages a DA of 68, while the average across the entire top 10 organic results ranges between 51 and 71.

The takeaway here is simple. Do not chase an arbitrary number. Instead, look at the sites currently ranking for your target keywords and treat their average score as your working benchmark.

Why Domain Authority Should Not Be Your Only Focus

Here is where things get more nuanced, and it is important context that most agencies leave out of the conversation. Multiple independent studies in 2026 have challenged how strongly DA predicts actual rankings, especially at the local and niche level.

One analysis from Improve My Search Ranking (improvemysearchranking.com) tracked 20,000 keywords across 156 local SEO campaigns and found a correlation of negative 0.14 between authority scores and page one rankings. In plain terms, that means there was virtually no relationship between authority and ranking position in local search. The study found businesses with very low authority scores regularly outranked major national directories, largely because their content was more specific and more relevant to the exact search being performed.

A separate legal industry study covered by Law Firm Newswire (lawfirmnewswire.com) reached a similar conclusion, finding that law firms with lower DA scores routinely outranked firms with scores several times higher, and that the predictive power of DA was barely better than chance in head to head matchups between competing firms.

The consistent theme across this research is that relevance often beats raw authority, especially for smaller or local businesses. A tightly focused page built specifically for your service and your city will frequently outperform a generic page on a much larger, higher authority website.

What This Means for Your Business

Domain Authority is a useful comparison tool. It can help you understand roughly where you stand against your competitors and whether your backlink profile needs attention. What it should never become is a strategic goal in itself.

Instead of asking how to raise your DA score, ask how to build the things that naturally raise it as a side effect, meaningful backlinks from relevant sites, content that answers real questions your customers are asking, a clean and fast website, and a brand that people talk about and link to organically.

If you want an honest read on where your website actually stands, and a strategy built around what is proven to move the needle rather than a vanity number, that is exactly the kind of audit Digital Practice builds for growing companies.